GE MDS entraNET 900, Техническое руководство

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62 MDS entraNET Technical Manual 05-4055A01, Rev. E
address and port number of the host to send data to (at the
remote end).
•
TX IP Port
—A dynamically assigned software port used by
external applications such as HMI interfaces, host polling
programs, and so on.
•
Talkback Enable
—Used to enable or disable Talkback mode.
[
Enabled, Disabled; Disabled
]
•
Baud Rate
—This menu item is used to set the data rate
(payload) for the
COM
port in bits per second. [
1,200–115,200;
19200
]
•
Byte Format
—This item allows you to set the interface
signaling parameters: baud rate (see
Baud Rate
above for the
allowable range), data bits, parity, and stop bits. [
7N1, 7E1,
7O1, 8N1, 8E1, 8O1; 8N1
]
•
Buffer Size
—This selection selects the size of the buffer
available for passing serial traffic. The maximum AP buffer
size for incoming serial data is 256 bytes. Incoming serial
packets (from the RTU) larger than 256 bytes are split by the
AP into 256 byte packets before being transmitted over the
air. The associated remote(s), on receiving these packets,
transmits them from the serial port as separate packets. This
parameter does not affect serial data/packets received by the
AP (from remotes) over the air and transmitted from the local
AP serial port.
[16, 32, 64, 128, 256; 64 Bytes]
•
Inter-Packet Delay
— Specifies the number of characters that
signify the end of a message (inter-character time-out). A
transceiver receiving data through the serial port sends an
end-of-message signal to the remote end. MODBUS defines
a “3.5-character” parameter. [
0–65535; 4
]
•
Commit Changes and Exit Wizard
—Implements the settings
shown on the screen and closes the Serial Configuration
Wizard.
3.6.3 Remote Serial Gateway Configuration
(IP-to-Remote Serial)
The Remote Serial Gateway (RSG) Menu ( Figure 3-27 ) controls the IP
encapsulation behavior of all Remote radios. The gateway function is
essentially a table with one entry for each Remote radio passing serial
data. No further configuration is required at Remote radios.
The AP can be configured to accept IP traffic to be exchanged with
devices connected to the serial ports of one or more Remotes.
Figure 3-27 shows the starting point for configuring the remote serial
gateway settings.